In this subchapter:(1) DirectorThe term “Director” means the Director of the United States Geological Survey.
(2) Highly fluorinated compound(A) In generalThe term “highly fluorinated compound” means a perfluoroalkyl substance or a polyfluoroalkyl substance with at least one fully fluorinated carbon atom.
(B) DefinitionsIn this paragraph:(i) Fully fluorinated carbon atomThe term “fully fluorinated carbon atom” means a carbon atom on which all the hydrogen substituents have been replaced by fluorine.
(ii) Perfluoroalkyl substanceThe term “perfluoroalkyl substance” means a chemical of which all of the carbon atoms are fully fluorinated carbon atoms.
(iii) Polyfluoroalkyl substanceThe term “polyfluoroalkyl substance” means a chemical containing at least one fully fluorinated carbon atom and at least one carbon atom that is not a fully fluorinated carbon atom.
(Pub. L. 116–92, div. F, title LXXIII, § 7331, Dec. 20, 2019, 133 Stat. 2281.)
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